Wednesday, 28 September 2016

How To Stream Twitter Data Into Hadoop Using Apache Flume

Pre-Requisites of Flume Project:
hadoop-2.6.0
flume-1.6.0
java-1.7


NOTE: Make sure that install all the above components

Flume Project Download Links:
`hadoop-2.6.0.tar.gz` ==> link
`apache-flume-1.6.0-bin.tar.gz` ==> link
`kalyan-twitter-hdfs-agent.conf` ==> link
`kalyan-flume-project-0.1.jar` ==> link


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1. create "kalyan-twitter-hdfs-agent.conf" file with below content

agent.sources = Twitter
agent.channels = MemChannel
agent.sinks = HDFS

agent.sources.Twitter.type = com.orienit.kalyan.flume.source.KalyanTwitterSource
agent.sources.Twitter.channels = MemChannel
agent.sources.Twitter.consumerKey = ********
agent.sources.Twitter.consumerSecret = ********
agent.sources.Twitter.accessToken = ********
agent.sources.Twitter.accessTokenSecret = ********
agent.sources.Twitter.keywords = hadoop, big data, analytics, bigdata, cloudera, data science, data scientiest, business intelligence, mapreduce, data warehouse, data warehousing, mahout, hbase, nosql, newsql, businessintelligence, cloudcomputing

agent.sinks.HDFS.type = hdfs
agent.sinks.HDFS.channel = MemChannel
agent.sinks.HDFS.hdfs.path = hdfs://localhost:8020/user/flume/tweets
agent.sinks.HDFS.hdfs.fileType = DataStream
agent.sinks.HDFS.hdfs.writeFormat = Text
agent.sinks.HDFS.hdfs.batchSize = 100
agent.sinks.HDFS.hdfs.rollSize = 0
agent.sinks.HDFS.hdfs.rollCount = 100
agent.sinks.HDFS.hdfs.useLocalTimeStamp = true

agent.channels.MemChannel.type = memory
agent.channels.MemChannel.capacity = 1000
agent.channels.MemChannel.transactionCapacity = 100


2. Copy "kalyan-twitter-hdfs-agent.conf" file into "$FUME_HOME/conf" folder

3. Copy "kalyan-flume-project-0.1.jar" file into"$FLUME_HOME/lib" folder

4. Execute the below command to `Extract data from Twitter into Hadoop using Flume`

$FLUME_HOME/bin/flume-ng agent -n agent --conf $FLUME_HOME/conf -f $FLUME_HOME/conf/kalyan-twitter-hdfs-agent.conf -Dflume.root.logger=DEBUG,console





5. Verify the data in console





6. Verify the data in hdfs location is "hdfs://localhost:8020/user/flume/tweets"







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